wiki:u/erica/AccretionModelingBlog

Version 4 (modified by Erica Kaminski, 7 years ago) ( diff )

Bondi Accretion

3/18/2018

Am working on a 3D simulation of Bondi Flow onto a central sink particle and studying the accretion properties using the Krumholz accretion algorithm.

The setup has the following parameters (in computational units):

Lx=Ly=Lz 20
MaxLevel (AMR) 2
Mx=My=Mz 64
Effective resolution (dx) .15625
Sink dx = 4dx .625

The following parameters are used for calculating the Bondi Flow onto the particle:

1.66

From Bondi (1952) we have the following quantities (in order: Bondi radius, accretion rate, sonic radius, nondimensional density and velocity):

Library

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